The first copy of Cut Down still has value in giving your opponent something else to play around, and its conditionality is somewhat mitigated by Jace, so it is a fine inclusion, but the bar for adding a second copy over anything is very high and generally not recommended
A 3/4 with flash and reach is nothing to scoff at for three mana, either, and itll help lock up games after youve hamstrung your opponent
You can kill opponents fairly reliably in one fell swoop with this $.50 creature spell
Be sure you have at least a reason or two to spring for a fetch land, otherwise, it's worth it to save some money and leave the big spending for decks that need more from their land base
It's said that it was published 1,500,000 copies per month, but there are no clear data because the data that is older than 2008 is not opened to the public